That's an interesting theory. This particular toilet is one of those old monster units that dumps a ton of water.

The thing that makes me wonder if I have some sort of localized blockage is that this same toilet never did this double flush for many years.

Bob

: Bob

: I have new American Standard 1.6 toilets and in trying to get them to flush better, AS sent me new flappers. Apparently, the flappers they sent stay open longer than the stock ones. In doing so, they cause the toilet to flush twice before the flapper closes. They also empty the tank, so I'm using more than the 1.6 g that I'm supposed to use. Maybe that's your situation, too??

: Grant

:
: : My toilet will flush twice and I'm trying to figure out what might be going on. Basically the bowl empities once and then, as the water from the tank continues to enter the bowl, the bowl fills and empties again.

: : My impression is that the drain pipe can't handle all the water at once and this is preventing a continuous drain of the bowl.

: : Does that theory make sense? If so, should I try to clear the drain with a chemical clog remover?

: : Thanks,

: : Bob